PHP str_replace() Function

The str_replace() function in PHP replaces all occurrences of a search string with a replacement string. for example, when you try replacing spaces with minus signs(-) in PHP.

e.g: PHP MySQL Tutorial to PHP-MySQL-Tutorial. 

In PHP to replace all spaces with minus signs(-) or plus(+) use the str_replace() method.

Replace Whitespace with Hyphen (-)

Removing white space is quite useful for manipulating strings, especially when you working with a URL Rewriting - htaccess project link below.

Example: https://tapgen.xyz/quotation/120/How-to-resize-image-before-upload-in-PHP

 
 $text = " How to resize image before upload in PHP ";
$replacedText = str_replace(" ", "-", $text);
echo $replacedText; // Outputs:  How-to-resize-image-before-upload-in-PHP 
                                    

The output will show all spaces in the hyphen.
 

Definition and Usage of 

The str_replace() function accepts four parameters, of which 3 are mandatory and one is optional. 

Here’s the basic syntax: str_replace(" ", "-", $text);

• $search: The value to search for.
• $replace The value to replace with. In our example, we replace with (-). but we can replace it with another string like an underscore, plus
• $subject: The string or array of strings to perform the replacement on.

 
 // Replace all occurrences of "apple" with "orange"
$result = str_replace("apple", "orange", "I like apple pie and apple sauce.");
echo $result; // Outputs: I like orange pie and orange sauce.
 
 

Outputs: Apple with change or replace to orange in that example.

The str_replace() function is straightforward but powerful for performing simple text replacements in PHP. 

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